Watch: How visually challenged Amit Patel and his dog filmed daily abuse on London streets

Patel put a camera on his guide dog to learn the discrimination they both faced.

After September 18, 2015, Amit Patel no longer had to worry about bumping into obstacles or struggling to climb an escalator. Kika, his new guide dog, had become part of his family, and he could now commute better around the once familiar streets and subways of London.

But things took a turn for the worse when commuters started to hit Kika with umbrellas and bag, while treating Patel with indifference.